| 碱性金属修饰金属有机骨架材料MOF-5吸附位点及其常态下分离二氧化碳/甲烷的应用 |
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| 引用本文： | Somboon CHAEMCHUEN,周奎,姚宸,罗志雄,Francis VERPOORT.碱性金属修饰金属有机骨架材料MOF-5吸附位点及其常态下分离二氧化碳/甲烷的应用[J].应用化学,2015,32(5):552-556. |
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| 作者姓名： | Somboon CHAEMCHUEN 周奎 姚宸 罗志雄 Francis VERPOORT |
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| 基金项目： | 国家千人计划基金(G.0081.10N)资助项目 |
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| 摘 要： | 利用“一步法”合成并表征了4种碱性金属修饰的金属有机骨架材料MOF-5(记作M-MOF-5,M=Li,Na,K,Mg)。 并应用理想溶液吸附理论(IAST)对样品吸附选择性进行计算比较。 结果表明,碱性金属掺入可以降低MOF-5材料骨架结构的“互穿”程度,同时,在常温常压下,M-MOF-5对CO2/CH4的吸附选择性相对MOF-5(选择性为3.79)有着显著提高,尤其是Li-MOF-5(选择性为7.39)。 此外,Li-MOF-5的CO2捕获能力相对MOF-5也有提高。
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| 关 键 词： | 金属有机骨架材料MOF-5 二氧化碳/甲烷选择性 碱性金属 骨架互穿 |
| 收稿时间： | 2014-09-09 |
| 修稿时间： | 2014-12-10 |
Alkali-Metal Tuning of Adsorption Sites in Metal Organic Frameworks MOF-5 for Carbon Dioxide/Methane Separation at Ambient Conditions |
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| CHAEMCHUEN Somboon,ZHOU Kui,YAO Chen,LUO Zhixiong,VERPOORT Francis.Alkali-Metal Tuning of Adsorption Sites in Metal Organic Frameworks MOF-5 for Carbon Dioxide/Methane Separation at Ambient Conditions[J].Chinese Journal of Applied Chemistry,2015,32(5):552-556. |
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| Authors: | CHAEMCHUEN Somboon ZHOU Kui YAO Chen LUO Zhixiong VERPOORT Francis |
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| Institution: | Laboratory of Organometallics,Catalysis and Ordered Materials,State Key Laboratory ofAdvanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070,China;Center for Chemical and Material Engineering,Wuhan University of Technology,Wuhan 430070,China |
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| Abstract: | Alkali-metal modified metal organic frameworks MOF-5(denoted by M-MOF-5, M=Li, Na, K, Mg) were prepared by ‘one-step’ synthesis. The theoretical calculation(IAST, ideal adsorbed solution theory) was performed to compare the adsorption selectivity of materials. It is found that alkali-metal incorporated MOF-5 can reduce the interpenetration level of MOF-5 framework. The experiment results also show that M-MOF-5 can significantly improve the CO2/CH4 adsorption selectivity compared to MOF-5(3.79), especially Li-MOF-5(7.39) at ambient conditions. Furthermore, the CO2 capacity of Li-MOF-5 is also enhanced. |
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| Keywords: | metal organic frameworks MOF-5 carbon dioxide/methane selectivity alkali-metal interpenetration |
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